<!-- <h1>Angular Study!</h1>
<first-comp></first-comp>
<app-second></app-second>
<hr>
<app-third></app-third> -->
<app-study01></app-study01>
<app-inner-directive></app-inner-directive>
<app-template-var></app-template-var>
<app-double-bind></app-double-bind>
<app-ajax-send></app-ajax-send>